Air-heater.



- N. 0. WILDEFi.

AIR HEATER. APPLICATION FiLED SEPT. 2, 19:

Patented J an. 18, 1916.

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TINTTED @TATES; PATENT @FFTQE.

NEIL b. WILDER, OF GRAND RAPIDS, MICHIGAN.

AIR-HEATER. I

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v Specification of Letters Patent.

Patented Jan. 18, 1916.

Application filed September 2, 1914. Serial No. 859,791.

object is to provide a simple and highly efficient heating apparatus for preventing the water employed for cooling the engine cylinders from freezing in the water jacket or in the radiator during severe weather when the engine' s standing idle for any length of time.

The herein stated object is attained by means of a novel combination and arrangement of parts to be" hereinafter described and claimed, reference beinghad to the accompanying drawings forming a part of this specification, in which drawings.

Figure l is an elevation of a portion ofan 'automobile showing the application of the invention, the hood of the engine being broken away, and Fig. 2- is a plan view thereof.

Referring specifically tothe drawings, 5

denotes the engine of the car, the same being mounted at the-forward end of the latter and inclosed in a hood 6 as usual As nothing is claimed for the engine per se nor for the car, a detailed description thereof is deemed unnecessary.

At 7 is shown an air heater having an outlet flue 8 provided with two laterally spaced branches 9. The flue leads to the hood 6 and is carried horizon-tally across the same to the rear of the engine 5, as indicated at 10. From the part '10 of the flue the branches i 9 extend horizontally forward,

alongside the-engine cylinders'and near the bottom thereof. The sides of the branches 9 which face the cylinders are perforated, as indicated at 11 to discharge the heated air against the cylinders. 5

By locating the 'hot' air discharge pipes as shown and described, the cylinder and water jackets may be kept warm enough to prevent the cooling water from freezing, thus .preventing injury to the Water jacket and the radiator. The ,carbureter and the intake pipes are also kept warm, which results in an instantaneous vaporization of the fuel,

and enables the engine to be readily started in cold weather.. After the engine has been started, the hot air may be shutoff, a valve 12 being provided for this purpose. This valve is located in the flue 8 at some point within easy reach of the driver. The heater 7 may be mounted on the running board of the car as shown, or at any other convenient place on the car.

The heating apparatus hereinbefore described is highly efiicient in operation and it effectually serves the purpose for which it is I designed. The apparatus is also simple in construction, it can be easily and cheaply installed, and it is safe and economical in operation. The heater is not in proximity to the engine and there is consequently no danger of any flames reaching the highly explosive gases and oils around the engine. Charcoal or any other suitable fuel may be used in the'heater.

I claim:

1'. The combination'with a multiple cylinder internal combustion engine; of an air heater having an outlet provided with hori: zontal branches between which the engine cylinders are located, said branches having discharge openings facing the cylinders.

2. The combination with a multiple cylinderinternal combustion engine; of a pair of hot air discharge pipes located horizontally alongside the engine cylinders on opposite sides thereof and having outlets directed toward the cylinder walls, and a hot air heater to which said pipes are connected.

3. The combination with a multiple cylinder internal combustion engine; of an air heater having an outlet provided with horizontal branches between which the engine cylinders are located, said branches having discharge openings facing the cylinders, and a shut off device in said outlet; v

4. 'The combination with a multiple cylinder internal combustion engine; of an air heaterremote from the engine and having an outlet provided with horizontal branches between. which the engine cylinders are located, saidbranches having discharge openings facing the cylinders.

In testimony whereof I flix my signature in presence of two witnesses. V

a I NEIL 0. WI DER.

Witnesses:

ARTHUR F. SHAW, I

NICHOLAS VnnnnMAN. 

